diff options
Diffstat (limited to 'arch/arm')
-rw-r--r-- | arch/arm/mach-mvebu/coherency.c | 12 | ||||
-rw-r--r-- | arch/arm/mach-mvebu/coherency.h | 4 | ||||
-rw-r--r-- | arch/arm/mach-mvebu/common.h | 2 | ||||
-rw-r--r-- | arch/arm/mach-mvebu/platsmp.c | 10 |
4 files changed, 11 insertions, 17 deletions
diff --git a/arch/arm/mach-mvebu/coherency.c b/arch/arm/mach-mvebu/coherency.c index 8278960066c3..46d66c0a7dc5 100644 --- a/arch/arm/mach-mvebu/coherency.c +++ b/arch/arm/mach-mvebu/coherency.c @@ -47,18 +47,6 @@ static struct of_device_id of_coherency_table[] = { { /* end of list */ }, }; -#ifdef CONFIG_SMP -int coherency_get_cpu_count(void) -{ - int reg, cnt; - - reg = readl(coherency_base + COHERENCY_FABRIC_CFG_OFFSET); - cnt = (reg & 0xF) + 1; - - return cnt; -} -#endif - /* Function defined in coherency_ll.S */ int ll_set_cpu_coherent(void __iomem *base_addr, unsigned int hw_cpu_id); diff --git a/arch/arm/mach-mvebu/coherency.h b/arch/arm/mach-mvebu/coherency.h index 2f428137f6fe..df33ad8a6c08 100644 --- a/arch/arm/mach-mvebu/coherency.h +++ b/arch/arm/mach-mvebu/coherency.h @@ -14,10 +14,6 @@ #ifndef __MACH_370_XP_COHERENCY_H #define __MACH_370_XP_COHERENCY_H -#ifdef CONFIG_SMP -int coherency_get_cpu_count(void); -#endif - int set_cpu_coherent(int cpu_id, int smp_group_id); int coherency_init(void); diff --git a/arch/arm/mach-mvebu/common.h b/arch/arm/mach-mvebu/common.h index aa27bc2ffb60..98defd5e92cd 100644 --- a/arch/arm/mach-mvebu/common.h +++ b/arch/arm/mach-mvebu/common.h @@ -15,6 +15,8 @@ #ifndef __ARCH_MVEBU_COMMON_H #define __ARCH_MVEBU_COMMON_H +#define ARMADA_XP_MAX_CPUS 4 + void mvebu_restart(char mode, const char *cmd); void armada_370_xp_init_irq(void); diff --git a/arch/arm/mach-mvebu/platsmp.c b/arch/arm/mach-mvebu/platsmp.c index 875ea748391c..93f2f3ab45f1 100644 --- a/arch/arm/mach-mvebu/platsmp.c +++ b/arch/arm/mach-mvebu/platsmp.c @@ -88,8 +88,16 @@ static int __cpuinit armada_xp_boot_secondary(unsigned int cpu, static void __init armada_xp_smp_init_cpus(void) { + struct device_node *np; unsigned int i, ncores; - ncores = coherency_get_cpu_count(); + + np = of_find_node_by_name(NULL, "cpus"); + if (!np) + panic("No 'cpus' node found\n"); + + ncores = of_get_child_count(np); + if (ncores == 0 || ncores > ARMADA_XP_MAX_CPUS) + panic("Invalid number of CPUs in DT\n"); /* Limit possible CPUs to defconfig */ if (ncores > nr_cpu_ids) { |